<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="名称" prop="categoryName">
        <el-input
          v-model="queryParams.categoryName"
          placeholder="请输入分类名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="编码" prop="categoryCode">
        <el-input
          v-model="queryParams.categoryCode"
          placeholder="请输入分类编码"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="父级" prop="parentId">
        <el-input
          v-model="queryParams.parentId"
          placeholder="请输入父分类ID"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="排序" prop="sortOrder">
        <el-input
          v-model="queryParams.sortOrder"
          placeholder="请输入排序"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="状态" prop="status">
        <el-select v-model="queryParams.status" placeholder="请选择状态" clearable>
          <el-option
            v-for="dict in dict.type.sys_common_status"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['fun:category:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-sort"
          size="mini"
          @click="toggleExpandAll"
        >展开/折叠</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['fun:category:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['fun:category:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['fun:category:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
      v-if="refreshTable"
      v-loading="loading"
      :data="categoryList"
      row-key="categoryId"
      :default-expand-all="isExpandAll"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="分类ID" align="center" prop="categoryId" width="80" />
      <el-table-column label="分类名称" align="center" prop="categoryName" width="200" />
      <el-table-column label="分类编码" align="center" prop="categoryCode" />
      <el-table-column label="创建组织" align="center" width="120">
        <template slot-scope="scope">
          <span>{{ getDeptName(scope.row.orgId) }}</span>
        </template>
      </el-table-column>
      <!-- 图标和图片字段已隐藏 -->
      <!-- <el-table-column label="图标" align="center" prop="categoryIcon" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.categoryIcon" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="图片" align="center" prop="categoryImage" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.categoryImage" :width="50" :height="50"/>
        </template>
      </el-table-column> -->
      <el-table-column label="排序" align="center" prop="sortOrder" />
      <el-table-column label="状态" align="center" prop="status">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.sys_normal_disable" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column label="备注" align="center" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['fun:category:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-hasPermi="['fun:category:add']"
          >新增</el-button>
          <el-button
            v-if="scope.row.parentId != 0"
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['fun:category:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改商品分类对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="800px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24" v-if="form.parentId !== 0">
            <el-form-item label="上级分类" prop="parentId">
              <treeselect v-model="form.parentId" :options="categoryOptions" :normalizer="normalizer" placeholder="选择上级分类" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="分类名称" prop="categoryName">
              <el-input v-model="form.categoryName" placeholder="请输入分类名称" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="分类编码" prop="categoryCode">
              <el-input v-model="form.categoryCode" placeholder="请输入分类编码" />
            </el-form-item>
          </el-col>
        </el-row>
        <!-- 分类图标和分类图片字段已隐藏 -->
        <!-- <el-row>
          <el-col :span="12">
            <el-form-item label="分类图标" prop="categoryIcon">
              <image-upload v-model="form.categoryIcon"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="分类图片" prop="categoryImage">
              <image-upload v-model="form.categoryImage"/>
            </el-form-item>
          </el-col>
        </el-row> -->
        <el-row>
          <el-col :span="12">
            <el-form-item label="排序" prop="sortOrder">
              <el-input-number v-model="form.sortOrder" controls-position="right" :min="0" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="状态">
              <el-radio-group v-model="form.status">
                <el-radio
                  v-for="dict in dict.type.sys_normal_disable"
                  :key="dict.value"
                  :label="dict.value"
                >{{dict.label}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="24">
            <el-form-item label="备注">
              <el-input v-model="form.remark" type="textarea" placeholder="请输入内容" />
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listCategory, getCategory, delCategory, addCategory, updateCategory } from "@/api/fun/category"
import { getDept } from "@/api/system/dept"
import Treeselect from "@riophae/vue-treeselect"
import "@riophae/vue-treeselect/dist/vue-treeselect.css"
import CacheManager from '@/utils/cacheManager'


export default {
  name: "Category",
  dicts: ['sys_normal_disable'],
  components: { Treeselect },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 商品分类表格数据
      categoryList: [],
      // 分类树选项
      categoryOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        parentId: null,
        categoryName: null,
        categoryCode: null,
        categoryIcon: null,
        categoryImage: null,
        sortOrder: null,
        status: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        categoryName: [
          { required: true, message: "分类名称不能为空", trigger: "blur" }
        ],
        categoryCode: [
          { required: true, message: "分类编码不能为空", trigger: "blur" }
        ]
      }
    }
  },
  created() {
    this.getList()
  },
  mounted() {
    // 监听表单提交事件
    this.$eventBus.$on('refreshCategoryList', () => {
      this.getList()
    })
  },
  beforeDestroy() {
    // 移除事件监听器
    this.$eventBus.$off('refreshCategoryList')
  },
  methods: {    /** 根据部门ID获取部门名称 */
    getDeptName(deptId) {
      if (!deptId) return '-'
      return CacheManager.getDeptName(deptId, getDept)
    },
    /** 查询商品分类列表 */
    getList() {
      this.loading = true
      listCategory(this.queryParams).then(response => {
        this.categoryList = this.handleTree(response.rows, "categoryId")
        this.loading = false
      })
    },
    /** 转换分类数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children
      }
      return {
        id: node.categoryId,
        label: node.categoryName,
        children: node.children
      }
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false
      this.isExpandAll = !this.isExpandAll
      this.$nextTick(() => {
        this.refreshTable = true
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        categoryId: null,
        parentId: 0,
        categoryName: null,
        categoryCode: null,
        categoryIcon: null,
        categoryImage: null,
        sortOrder: 0,
        status: "0",
        delFlag: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        remark: null
      }
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.categoryId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset()
      if (row != undefined) {
        this.form.parentId = row.categoryId
      }
      this.open = true
      this.title = "添加商品分类"
      listCategory().then(response => {
        this.categoryOptions = this.handleTree(response.rows, "categoryId")
      })
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const categoryId = row.categoryId || this.ids[0]
      getCategory(categoryId).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改商品分类"
        listCategory().then(response => {
          this.categoryOptions = this.handleTree(response.rows, "categoryId")
          // 如果没有可选的父分类，添加当前分类的父分类
          if (this.categoryOptions.length == 0 && this.form.parentId != 0) {
            const noResultsOptions = { categoryId: this.form.parentId, categoryName: this.form.parentName, children: [] }
            this.categoryOptions.push(noResultsOptions)
          }
        })
      })
    },

    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.categoryId != null) {
            updateCategory(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
              // 刷新父页面数据
              this.$tab.refreshPage()
            })
          } else {
            addCategory(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
              // 刷新父页面数据
              this.$tab.refreshPage()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const categoryIds = row.categoryId || this.ids
      this.$modal.confirm('是否确认删除商品分类编号为"' + categoryIds + '"的数据项？').then(function() {
        return delCategory(categoryIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('fun/category/export', {
        ...this.queryParams
      }, `category_${new Date().getTime()}.xlsx`)
    }
  }
}
</script>
